Box-opener.



A. L. UBERTO.

BOX OPENER.

APPLICATION FILED FEB. 1, I9I6- 1 l ,02 1 Patented Dec. 26, 1916.

avwcvlbo'c HLU s E RTO AMEIDEO L. UEEBTO, OF OAKLAND, CALIFORNIA.

BOX-OPENER.

Specification of Letters Patent.

Patented Dec. 25, 1916.

Application filed February 7, 1916. Serial No. 76,755.

To all whom it may concern.-

Be it known that I, AMnDno L. Uenn'ro, a citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented certain new and useful Improvements in Box-Openers, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in box openers and has relation more particularly to a device of this general character especially designed and adapted for use in connection with a box comprising a pair of members arranged so that one partly overlaps the other, and it is an objectof the invention to provide a novel and improved opener of this general character which is pivotally mounted upon one of the members and adapted to coact with the free edge of the overlapping portion of the second member, and wherein the device automatically assumes an inoperative position.

Furthermore it is an object of the invention to provide a novel and improved device of this general character wherein one of the members of the box is provided with means for limiting the pivotal movement of the device.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved box opener whereby certain important advantages are attained and the device is rendered simpler, less expensive and otherwise more convenient and advantageous for use, all as will be hereinafter more fully set forth.

The novel features of the invention will hereinafter be definitely claimed.

In order that my invention may be the 7 better understood, 1 will now proceed to describe the same with reference to the accompanying drawing, wherein- Figure l is an elevational view illustrating a box having applied thereto an opener constructed in accordance with an embodiment of my invention; Fig. 2 is a sectional view taken substantially on the line 2-2 of Fig. 1; and Fig. 3 is a view in perspective, detached, of the opener as herein embodied.

As disclosed in the accompanying drawings, 1 and 2 denote a pair of members adapted to partly overlap when in assembled relation, one of said members being provided with an annular bead 3 coacting with the free marginal portion of the second member for controlling the extent of the overlapping relation between the members 1 and 2. As herein disclosed, the head 3 is carried by the member 1 with a portion thereof interrupted, as at 4-, so that no obstruction will be offered to the rocking or pivotal movement of the opening member 5. As herein disclosed, the opening member 5 comprises an elongated plate mounted for pivotal movement intermediate its length, as at 6, upon the member 1 and having its upper or inner edge formed into the cam 7 adapted to engage the free edge of the coacting member 2 of the box, whereby said member 2 is forced out of operative engagement with the member 1. It is to be observed that the free marginal portion of the member 2 is out-turned, as at 8, to afiord a flange to facilitate the coaction between said member 2 and the opening device 5. The plate or opening device 5 is also provided at its opposite ends with the laterally disposed out-turned wings 9 which afford convenient means whereby the opening device or plate- 5 may be readily rotated about its pivot. It is also to be observed that the wings 9 are positioned at opposite sides of the device or plate 5. Normally the device or plate 5 is in substantially a horizontal position and which position it automatically assumes when the members 1 and 2 are assembled, and it is to be noted that the member 1 has pressed therefrom the outwardly disposed stop 10 with which the under edge of the plate or opener 5 contacts, whereby the movement of the opener or plate 5 is limited in one direction. It will also be perceived that this stop 10 is positioned at one side of the pivot 6 whereby in addition to limiting the downward movement of the opener or plate 5, also prevents the same from being swung beyond a center, whereby it will be perceived that it is assured that the opener or plate 5 will be automatically depressed when the members 1 and 2 are assembled.

From the foregoing description, it is thought to be obvious that a box opener constructed in accordance with my invention is of an extremely simple and comparatively inexpensive nature and is particularly well adapted for use by reason of the convenience and facility with which it may be assembled,

and it will also be obvious that my invention 1 is susceptible of some change and modification without material departure from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice.

I claim:

In combination with a box comprising a pair of members arranged so that one partly overlaps the other, an elongated opener pivotally mounted intermediate its length on the overlapped member and presenting a rounded cam edge to the edge of the overlapping member, the overlapped member being provided with a stop at one side of the pivotal connection of the opener for limiting the downward movement of the opener and to prevent said opener passing beyond a center when rotated toward the overlapping member, whereby the overlapping member when applied to the overlapped member automatically returns the elongated opener to its inoperative position, said stop alsoserving to prevent movement of the rounded cam edge in a direction away from the overlapping member.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

AMEDEO L. UBERTOQ Witnesses: I E. B. STONE, M. A. THILKRET;

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, I). G. 

